Antec TruePower Quattro (TPQ-1000-EC) for SLI

'afternoon.

I am currently looking into building a gaming rig from scratch, and was wondering if the Antec TruePower Quattro (TPQ-1000-EC - 1000w) is a recommended PSU or overkill for this system:

Asus P8P67 PRO
Intel Core i7 2600-K
2x EVGA GeForce GTX 560 Ti
1x 4 GB DDR3 1333
(Case= Antec 1200 if it matters)

I'm not sure if I want to go into overclocking somewhere along the road, but I do want to get the most out of the SLI setup. I realise a 750w PSU is "enough" for this system, but was wondering if it would limit my vidcard performances at all in the high-end range of games nowadays.

Also, would there be any recommended tools to calculate these things for myself? I am not too familiar with the related physics.
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More about antec truepower quattro 1000
  1. 1Kw will leave a whole lot of headroom.
    Try the psu calculator
    http://extreme.outervision.com/PSUEngine
    Use 100% TDP and 100 % System load, don't bother with capacitor aging.

    750 watts wouldn't limit the performance of the cards.
  2. @delluser1: Thanks :) much obliged.
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